v1.7.2: don't set challenge twice

node.js

@@ -541,7 +541,7 @@ ACME._postChallenge = function (me, options, auth) {
     });
   }
 
-  return ACME._setChallenge(me, options, auth).then(respondToChallenge);
+  return respondToChallenge();
 };
 ACME._setChallenge = function (me, options, auth) {
   return new Promise(function (resolve, reject) {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "acme-v2",
-  "version": "1.7.1",
+  "version": "1.7.2",
   "description": "Free SSL. A framework for building Let's Encrypt v2 clients, and other ACME v2 (draft 11) clients. Successor to le-acme-core.js",
   "homepage": "https://git.coolaj86.com/coolaj86/acme-v2.js",
   "main": "node.js",